package com.web58.velocity.interceptor;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

import com.web58.velocity.bean.User;
import com.web58.velocity.constant.Constant;

public class LoginInterceptor implements HandlerInterceptor {

	@Override
	public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object arg2, Exception arg3)
			throws Exception {
		System.out.println("*********afterCompletion***********");
		
	}

	@Override
	public void postHandle(HttpServletRequest request, HttpServletResponse response, Object arg2, ModelAndView arg3)
			throws Exception {
		System.out.println("*********postHandle***********");
	}

	@Override
	public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object arg2) throws Exception {
		HttpSession session=request.getSession();
		 User  user=(User) session.getAttribute(Constant.login_user);
		if(user!=null){
			response.sendRedirect("/login.html");
			return false;
		}
		return true;
	}

}
